So, what sort of monstrosity do you think you would need to have in order to control chaos? Well, for Age of Sigmar, you'd need some sort of hulking brute who would just pick up and throw any dissenters towards the enemy. Perhaps someone with a really huge axe and even a braided beard that you could whip someone with. You might be thinking just a Bloodthirster. But really, you would need Skarbrand.
Whether you actually want to use him as Skarbrand (no, Skarburn, we're not talking about you) or just as a customized Bloodthirster is up to you. Either way, this big baddie can now be part of your army. Well... soon he can, anyway, once they've started sending out the pre-orders.